1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "InterfaceInitFuncs.h"
#include "AccessibleWrap.h"
#include "nsMai.h"
#include "RemoteAccessible.h"
#include "mozilla/Likely.h"
using namespace mozilla;
using namespace mozilla::a11y;
extern "C" {
static void getCurrentValueCB(AtkValue* obj, GValue* value) {
Accessible* acc = GetInternalObj(ATK_OBJECT(obj));
if (!acc) {
return;
}
memset(value, 0, sizeof(GValue));
double accValue = acc->CurValue();
if (std::isnan(accValue)) return;
g_value_init(value, G_TYPE_DOUBLE);
g_value_set_double(value, accValue);
}
static void getMaximumValueCB(AtkValue* obj, GValue* value) {
Accessible* acc = GetInternalObj(ATK_OBJECT(obj));
if (!acc) {
return;
}
memset(value, 0, sizeof(GValue));
double accValue = acc->MaxValue();
if (std::isnan(accValue)) return;
g_value_init(value, G_TYPE_DOUBLE);
g_value_set_double(value, accValue);
}
static void getMinimumValueCB(AtkValue* obj, GValue* value) {
Accessible* acc = GetInternalObj(ATK_OBJECT(obj));
if (!acc) {
return;
}
memset(value, 0, sizeof(GValue));
double accValue = acc->MinValue();
if (std::isnan(accValue)) return;
g_value_init(value, G_TYPE_DOUBLE);
g_value_set_double(value, accValue);
}
static void getMinimumIncrementCB(AtkValue* obj, GValue* minimumIncrement) {
Accessible* acc = GetInternalObj(ATK_OBJECT(obj));
if (!acc) {
return;
}
memset(minimumIncrement, 0, sizeof(GValue));
double accValue = acc->Step();
if (std::isnan(accValue)) {
accValue = 0; // zero if the minimum increment is undefined
}
g_value_init(minimumIncrement, G_TYPE_DOUBLE);
g_value_set_double(minimumIncrement, accValue);
}
static gboolean setCurrentValueCB(AtkValue* obj, const GValue* value) {
Accessible* acc = GetInternalObj(ATK_OBJECT(obj));
if (!acc) {
return false;
}
double accValue = g_value_get_double(value);
return acc->SetCurValue(accValue);
}
void valueInterfaceInitCB(AtkValueIface* aIface) {
NS_ASSERTION(aIface, "Invalid aIface");
if (MOZ_UNLIKELY(!aIface)) return;
aIface->get_current_value = getCurrentValueCB;
aIface->get_maximum_value = getMaximumValueCB;
aIface->get_minimum_value = getMinimumValueCB;
aIface->get_minimum_increment = getMinimumIncrementCB;
aIface->set_current_value = setCurrentValueCB;
}
}
|
